ABSTRACT

The study aimed to quantify the immediate effects of dietary diversification, food safety, and hygiene interventions on child undernutrition in four rural villages in Kongwa district of central Tanzania. One hundred mothers with their children of less than 24 months old were recruited for this study. The difference-in-difference (DID) method was used to assess the effects of intensive intervention through a learning-by-doing process on the topic of aflatoxin free diversified food utilization and improved hygiene practices. Periodic anthropometric measurements were conducted on the 0th, 7th, 14th, and 21st days, and DID estimator showed the significant and positive average marginal effects of the intervention on Z-Scores being 0.459, 0.252, and 0.493 for wasting, stunting, and underweight, respectively. Notably, at the end of the study, the mean aflatoxin M₁ level in urine samples decreased by 64% in the intervention group, while it decreased by 11% in the control group. The study provides quantitative evidence on intensive 21-day training for mothers incorporating integrated technologies yielded positive impacts on their children’s nutritional outcomes.

摘要

该研究旨在量化饮食多样化，食品安全和卫生干预措施对坦桑尼亚中部康瓦地区四个乡村儿童营养不良的直接影响。这项研究招募了一百名母亲，其子女不到24个月。差异差异（DID）方法用于通过在无黄曲霉毒素的多样化食品利用和改善卫生习惯这一主题的边做边学的过程中评估强化干预的效果。在第0、7、14和21天进行了定期的人体测量，DID估算器显示，对于Z评分，该干预对消瘦，发育迟缓和体重过轻的显着和正向的平均边际效应分别为0.459、0.252和0.493，分别。值得注意的是，在研究结束时，干预组的尿液样品中_1种水平下降了64％，而对照组则下降了11％。这项研究提供了量化的证据，表明对采用综合技术的母亲进行为期21天的强化培训对他们的孩子的营养结果产生了积极影响。